P0802
Transmission Control System MIL Request Circuit/Open
P0802 is an OBD-II diagnostic trouble code meaning: Transmission Control System MIL Request Circuit/Open. Common causes: wire break in mil request circuit, poor contact in tcm connectors. Estimated repair cost: $6–167.
Symptoms
- MIL warning light does not come on when turning the key
- The MIL does not come on when there is a transmission problem
- Other transmission fault codes are possible
- No warnings about transmission problems
Causes
- Wire break in MIL request circuit
- Poor contact in TCM connectors
- Transmission control module (TCM) malfunction
- Wiring harness damage
- Short circuit in the circuit
How to Fix
- Check MIL circuit fuse
- Inspect the wiring harness for damage
- Check continuity between TCM and MIL
- Test TCM connectors for corrosion and poor contact.
- If necessary, replace the transmission control unit
Related codes
Error P0802 by Vehicle Brand
FAQ
What does the P0802 code mean?
P0802 is an OBD-II diagnostic trouble code that indicates: Transmission Control System MIL Request Circuit/Open
What causes a P0802 error code?
The most common causes of P0802 include: Wire break in MIL request circuit; Poor contact in TCM connectors; Transmission control module (TCM) malfunction; Wiring harness damage.
How do I fix a P0802 diagnostic trouble code?
To fix P0802: Check MIL circuit fuse. Inspect the wiring harness for damage. Check continuity between TCM and MIL. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0802?
Yes, but get it checked soon
How much does it cost to fix P0802?
The estimated repair cost for P0802 is $6–167. Actual cost depends on your vehicle, location, and labor rates.
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